E is Bohrs model the dots on the rings represent the valence electrons
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What group of people ay?
Maybe look at their differences in appearance: height, size, weight, skin color, clothing choice?
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Coulomb's law, mathematical description of the electric force between charged objects. Formulated by the 18th-century French physicist Charles-Augustin de Coulomb, it is analogous to Isaac Newton's law of gravity.
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Soo yeah I think this can help you
The concentration of a substance is the quantity of solute present in a given quantity of solution.